William b



(NoModel.)

W. E. WILCOX.

GAR AXLB B0X.V

Patentd Apr. 14, 1885.

32 n- O iig-SO UNITED STATES PATENT OFFICE.

FREDERICK H. KELLY, OF SAME PLACE.

CAR-AxLE Box. l

SPECIFQATION forming part of Letters Patent No. 315,581, dated April 14,1885.

Y i Application filed February 6, 1855. (No model.)

To all whom it 'may concern,.-

Beit known that I, WILLIAM E. WILcox, of East Cleveland, in the countyof Cuyahoga and State of Ohio, haveinvented certain new and usefulImprovements in Car-Axle Boxes; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and usethe same.

My invention relates to car-axle boxes; and it consists in the improvedVcombination of parts that will more fully hereinafter appear.

In the drawings, Figure l is a side view of a car-axle box embodying myinvention. Fig. 2 is a longitudinal vertical sectional view of thecar-axle box through the center of the axle. Fig. 3 is an interior viewof the same, with the necessary parts removed to show the position ofthe rollers about the axle and the peripheral guide-fiange upon theinner side of the journal-box. Fig. 4 is the front cap of the boxprovided with antifrictional end bearing mechanism for the axle, with aportion cut away to show the anti-frictional mechanism of this portionof my invention. Fig. 5 is a detached plan View of one of the rings thatprovide the j ournal-bearings for the antifrictional rollers that,surround the axle and at the same time holds them in place. Fig. 6 is adetached view of vone of the anti-fric- -tional rollersthat surroundthe'axle, showing its construction.

In the drawings, A represents the `axle of an ordinary street-car; B,the anti-friction rollers placed within the axle-box D and surroundingthe journal of the axle A, as shown in Figs. 2 and 3. The rollers B areprovided with heads B at either end, and journals b. The length of thejournals b should correspond to the thickness of the solid ring C, andtheir diameter to the size of the slots O inthe ring C, in which theyturn.` The rollers B are also grooved, as shown at b', for the purposeof receiving the guide-ange D of box D, as shown in Fig. 2.

WILLIAM E. WILCOX, CLEVELAND, OHIO, ASSIGNOR `OF ONE-HALF TO opening,G2, of a size to accommodate theaxle upon which it is to be used. Fromthis central opening are grooves or slots O', to receive the journals bof the rollers B. In each axlebox two of lthese rings are used, as shownin i Fig. 2, for supporting the rollers; The inner surface of theaxle-box is provided with a i guide-flange, D', that runs in the groovesb of 5 5 the rollers, thereby preventing displacement of the rollerswithin the box.

My axle-box is also provided with an antii friction bearing forthe'outer end of the axle. 6o

This consists of a plate, E, Fig. 2, against which the axle bears. Thisplate rests upon balls E', placed in a circular groove, E2, in the capD2. The plateis held in place by the bolt e, that passes through theplate and the cap, and at the same time holding the balls E' in thegroove E2. This portion of my invention is particularly valuable uponcurves, i where the draft of the car is always largely increased, owingto the friction caused by the collar of the axle bearing against theaxlebox. This bearing of the .collar of the axle is prevented by :myinvention, the end of the axle bearing against the plate E, which turnson the balls E. l

What I claim is i In a car-axle box, the combination, with theanti-friction rollers B, provided with journals 1 i b and groove b', ofthe rings O and the antifrictional end bearing mechanism consisting ofthe plate E, balls E', and groove E2 in the cap D2, when constructedsubstantially as and for the purposes shown.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 28th day of January, 1885.

WILLIAM E. wILcoX.

Witnesses: i

FREDK. KINsMAN, G. NV. SHUMWAY. L

